{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:20.447901", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2014-Sep-03_to_2014-Sep-08_344.0_16.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2014090001530}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "September 03 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 08 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 62509.52020133074}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Mauritania", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 16.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 344.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 343.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.03, 17.53], [-15.5, 17.75], [-14.97, 17.53], [-14.75, 17.0], [-14.85, 16.75], [-14.75, 16.5], [-14.97, 15.97], [-15.5, 15.75], [-16.03, 15.97], [-16.25, 16.5], [-16.15, 16.75], [-16.25, 17.0], [-16.03, 17.53]]]]}, "2014-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.03, 17.53], [-15.5, 17.75], [-14.97, 17.53], [-14.75, 17.0], [-14.85, 16.75], [-14.75, 16.5], [-14.97, 15.97], [-15.5, 15.75], [-16.03, 15.97], [-16.25, 16.5], [-16.15, 16.75], [-16.25, 17.0], [-16.03, 17.53]]]]}, "2014-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.47, 13.97], [-15.0, 13.75], [-15.25, 13.85], [-15.5, 13.75], [-16.03, 13.97], [-16.25, 14.5], [-16.03, 15.03], [-15.5, 15.25], [-15.25, 15.15], [-15.0, 15.25], [-14.47, 15.03], [-14.25, 14.5], [-14.47, 13.97]]], [[[-14.03, 15.53], [-13.5, 15.75], [-13.25, 15.65], [-13.0, 15.75], [-12.75, 15.65], [-12.68, 15.68], [-12.53, 16.03], [-12.0, 16.25], [-11.47, 16.03], [-11.25, 15.5], [-11.47, 14.97], [-11.82, 14.82], [-11.97, 14.47], [-12.5, 14.25], [-12.75, 14.35], [-13.0, 14.25], [-13.25, 14.35], [-13.5, 14.25], [-14.03, 14.47], [-14.25, 15.0], [-14.03, 15.53]]], [[[-15.5, 17.75], [-15.25, 17.65], [-15.0, 17.75], [-14.47, 17.53], [-14.25, 17.0], [-14.46, 16.5], [-14.25, 16.0], [-14.47, 15.47], [-15.0, 15.25], [-15.25, 15.35], [-15.5, 15.25], [-15.75, 15.35], [-16.0, 15.25], [-16.53, 15.47], [-16.75, 16.0], [-16.53, 16.53], [-16.18, 16.68], [-16.15, 16.75], [-16.25, 17.0], [-16.03, 17.53], [-15.5, 17.75]]]]}, "2014-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.0, 16.75], [-15.75, 16.65], [-15.62, 16.7], [-15.75, 17.0], [-15.65, 17.25], [-15.75, 17.5], [-15.53, 18.03], [-15.0, 18.25], [-14.47, 18.03], [-14.25, 17.5], [-14.35, 17.25], [-14.25, 17.0], [-14.46, 16.5], [-14.25, 16.0], [-14.35, 15.75], [-14.32, 15.68], [-14.25, 15.65], [-14.0, 15.75], [-13.75, 15.65], [-13.5, 15.75], [-13.25, 15.65], [-13.18, 15.68], [-13.03, 16.03], [-12.5, 16.25], [-12.25, 16.15], [-12.0, 16.25], [-11.47, 16.03], [-11.25, 15.5], [-11.47, 14.97], [-11.82, 14.82], [-11.97, 14.47], [-12.5, 14.25], [-12.75, 14.35], [-13.0, 14.25], [-13.25, 14.35], [-13.5, 14.25], [-13.75, 14.35], [-14.0, 14.25], [-14.25, 14.35], [-14.32, 14.32], [-14.47, 13.97], [-15.0, 13.75], [-15.25, 13.85], [-15.5, 13.75], [-16.03, 13.97], [-16.25, 14.5], [-16.12, 14.8], [-16.25, 14.85], [-16.5, 14.75], [-17.03, 14.97], [-17.25, 15.5], [-17.03, 16.03], [-16.68, 16.18], [-16.53, 16.53], [-16.0, 16.75]]]]}, "2014-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.0, 16.75], [-15.75, 16.65], [-15.62, 16.7], [-15.75, 17.0], [-15.65, 17.25], [-15.75, 17.5], [-15.53, 18.03], [-15.0, 18.25], [-14.47, 18.03], [-14.25, 17.5], [-14.35, 17.25], [-14.25, 17.0], [-14.46, 16.5], [-14.25, 16.0], [-14.35, 15.75], [-14.32, 15.68], [-14.25, 15.65], [-14.0, 15.75], [-13.75, 15.65], [-13.5, 15.75], [-13.25, 15.65], [-13.18, 15.68], [-13.03, 16.03], [-12.5, 16.25], [-12.25, 16.15], [-12.0, 16.25], [-11.47, 16.03], [-11.25, 15.5], [-11.47, 14.97], 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"Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7996610276657887, 1.9225242095799888, 1.6404357592260437, 2.0385921096031456, 2.7967398052645516, 2.451724244050429]}}